Pyrrhotite, Ferberite from Yindu Ag-Pb-Zn deposit, Hexigten Banner, Chifeng City, Inner Mongolia, China. Many minerals associated together, and special founds from this location, Pyrrhotite and ferberite and fluorite and siderite and chalcopyrite. Above all, so special to see the clear Pyrrhotite and ferberite crystals associations. size: 21×13×7cm, NO.20230201PF76.